US5755737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for diagnosis and treatment of arrhythmias
Assignee: Medtronic Inc
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Filing: 1996-12-13
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Granted: 1998-05-26
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Expires: 2016-12-13
Abstract
Abstract An implantable anti-arrhythmia device such as a defibrillator or anti-tachycardia pacemaker with an associated patient activator. The arrhythmia detection function is divided between the patient and the implanted device, rather than merely providing patient activation or a patient override. The implantable device is provided with a tachyarrhythmia recognition mechanism, which operates essentially continuously, and which, upon meeting a first set of criteria, will trigger delivery of an anti-arrhythmia therapy such as pacing, cardioversion or defibrillation. The patient is provided with an activator which informs the implanted device that the patient believes that anti-arrhythmia therapy is necessary. In response to receipt of the activation signal, the implanted device defines a time interval thereafter during which a second, less stringent set of arrhythmia detection criteria must be met, in response to which the device will deliver a cardioversion or defibrillation pulse.
Inventors
- 👤 Kathleen Alice Prieve
- 👤 William A. P. Graham
- 👤 David Karl Lee Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:12
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/38; A61N1/39; A61N1/3925; A61N1/36; A61N1/362; A61N1/3621; A61N1/372; A61N1/37211; A61N1/37252
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
129 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria less stringent than the first set of criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy.
Claim 2
Dependent Claim
129 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria less stringent than the first set of criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy.
Claim 3
Dependent Claim
34 words
A device according to claim 1 wherein the means for defining a second set of criteria comprises means for defining a set of criteria which are a subset of the first set of criteria.
Claim 4
Dependent Claim
16 words
A device according to claim 1 wherein the first and second therapies differ from one another.
Claim 5
Dependent Claim
165 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria for delivering a second anti-arrhythmia therapy; and wherein the means for determining whether the patient's heart rhythm meets the second set of criteria comprises means for determining whether the patient's heart rhythm meets the second set of criteria within a predetermined time interval following receipt of a patient activation signal.
Claim 6
Dependent Claim
165 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria for delivering a second anti-arrhythmia therapy; and wherein the means for determining whether the patient's heart rhythm meets the second set of criteria comprises means for determining whether the patient's heart rhythm meets the second set of criteria within a predetermined time interval following receipt of a patient activation signal.
Claim 7
Dependent Claim
58 words
A device according to claim 4 further comprising means for defining a third set of arrhythmia detection criteria and means responsive to the patient's heart rhythm meeting the third set of criteria at time of receipt of the patient activation signal for enabling the means for determining whether the patient's heart rhythm meets the second set of criteria.
Claim 8
Dependent Claim
35 words
A device according to claim 5 wherein the means for defining a third set of arrhythmia detection criteria comprises means for defining a third set of criteria less stringent than the second set of criteria.
Claim 9
Dependent Claim
149 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy; and further comprising means for transmitting information to an external receiver indicative of whether the second therapy is to be delivered in response to the patient activation signal.
Claim 10
Dependent Claim
149 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy; and further comprising means for transmitting information to an external receiver indicative of whether the second therapy is to be delivered in response to the patient activation signal.
Claim 11
Dependent Claim
148 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy; and further comprising means for transmitting information to an external receiver indicative that the second therapy will not be delivered in response to the patient activation signal.
Claim 12
Dependent Claim
148 words
An implantable anti-arrhythmia device comprising: means for defining a first set of arrhythmia detection criteria: means for monitoring a patients heart rhythm; means for determining whether the patient's heart rhythm meets the first set of criteria; means in responsive to a determination that the patient's heart rhythm meets the first set of criteria for delivering a first anti-arrhythmia therapy; means for defining a second set of arrhythmia detection criteria; means for receiving a patient activation signal; means responsive to receipt of a patient activation signal for determining whether the patient's heart rhythm meets the second set of criteria; and means responsive to a determination that the patient's heart rhythm meets the second set of criteria, for delivering a second anti-arrhythmia therapy; and further comprising means for transmitting information to an external receiver indicative that the second therapy will not be delivered in response to the patient activation signal.
References Cited (Backward Citations)
US3952750A
Cited
US4210149A
Cited
US4365633A
Cited
US4651740A
Cited
US5159926A
Cited
US5190034A
Cited
US5490862A
Cited
US5332400A
Cited
US5443486A
Cited
US5674249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |